A two-manual mechanical bowling instrument was built by the companyRieger from Krnov in 1894 (Op. 420) for 8,000 gold coins.

A two-manual mechanical bowling instrument built by Rieger factory in Krnov in 1894 (op. 420). Tools of the company Rieger from the end of the 19th century are crafted to this day considered to be the finest that have been built in Krnov, which also applies to this instrument. Visually interesting is the pseudo-classical organ case, which is richly decorated with gilded carvings and the emblem of the Nostics on the crown cornice. The organ is preserved in its original condition, including the tin prospectus whistles, whichwere saved from requisition in 1918.

The tool has a system of so-called combination registers (extensions), where two registers are compiled from one extended series. The advantage of of this design is the saving of space on the bark and also less financial Costs. But the overall plenum is not as satisfactory as one would expect for such rich disposition expected. The overall craftsmanship is made to a high standard, and this is matched by the precise operation mechanical traction and ergonomics of the gaming table. Decently the intonated instrument offers a range of interesting colour combinations. Perhaps that is why this organ was chosen in 1996 to the prestigious series of recordings Historical Organs in Bohemia, taken by Dutch radio. In 2009, he conducted Jan Karel from Sázava repaired the organ.